judicature vs judicial system

judicature and judicial system both are nouns.

Word	Noun	Adjective	Verb	Adverb
judicature	Yes	No	No	No
judicial system	Yes	No	No	No

As nouns, judicature and judicial system are synonyms defined as:

judicature and judicial system: the system of law courts that administer justice and constitute the judicial branch of government

Other synonyms of judicature include judicatory, judiciary.

judicature (noun)	judicial system (noun)
the act of meting out justice according to the law	the system of law courts that administer justice and constitute the judicial branch of government
the position of judge
the system of law courts that administer justice and constitute the judicial branch of government
an assembly (including one or more judges) to conduct judicial business